Do you just want to make random changes to dates? You still haven't told us what changes you want to make or the logic to make those changes. How do you know which shuold be plus and which should be minus?

In the above, we would replace 'NewDate' and 'listingID' with cell references (e.g. 'A1'). Once you have the formula created, copy the formula to every cell for all rows you want to update. This will generate a column with all of the update statements you need. Then, just copy all of those from the Excel spreadsheet into a query window and execute.

In the above, we would replace 'NewDate' and 'listingID' with cell references (e.g. 'A1'). Once you have the formula created, copy the formula to every cell for all rows you want to update. This will generate a column with all of the update statements you need. Then, just copy all of those from the Excel spreadsheet into a query window and execute.